Read Sony ICF-CD2000 / ICF-CD2000S Service Manual online
ICF-CD2000/CD2000S
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– 46 –
– 47 –
6-7.
SCHEMATIC DIAGRAM – LCD/KEY Boards –
•
See page 42 for Waveforms.
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
%
: indicates tolerance.
•
C
: panel designation.
•
U
: B+ Line.
• Power voltage is dc 6 V and fed with regulated dc power
supply from external power voltage jack.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
[
no mark : FM
[
] : CD PLAY
∗
: Impossible to measure
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
• Signal path.
F
: FM
• Abbreviation
CND : Canadian model
JE
JE
: Tourist model
SP
: Singapore model
(Page 36)
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